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Finding the Fourth Proportional to 516,327.75, 712,599.12 and 289,973.25

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Solution

The fourth proportional to 516,327.75, 712,599.12 and 289,973.25 is: 400,200.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,327.75 : 712,599.12 = 289,973.25 : x
  2. Step 2: Convert to fraction form
    516,327.75/712,599.12 = 289,973.25/x
  3. Step 3: Cross multiply
    516,327.75x = 712,599.12 × 289,973.25
  4. Step 4: Simplify right side
    516,327.75x = 206,634,682,773.54
  5. Step 5: Solve for x
    x = 206,634,682,773.54/516,327.75
  6. Step 6: Final answer
    x = 400,200.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.